Now our structure is basically finished here, let’s take care
about the surrounding objects. I really would like it (crane) to be
somewhere on the swamp on a little swamp island.

Let change the brush. I will take care that you could download these.

Adding some plants there (the lights on he plants too).

I can’t finish without having at least a dot textured). Maybe it is a run towards realism).

So select these parts of the image (I’ve used polygenic lasso
tool – it’s very easy to use this tool when working
with tablet.) copy them to a separate layer and apply a pattern in
layer styles on the layer.

I will paint some coming through lights. Use soft brush and opacity about 1%-5%.

You can now see the light coming through the whole.

A very good technique is to paint the lights on the separate layer and
to erase them back if needed. It is one of Ryan Church’s
(Star Wars and many more Concept artist) techniques I’ve seen
on his DVDs.